(E)-1-(2-Aminophenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one

(E)-1-(2-Aminophenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one

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In the asymmetric unit of the title chalcone derivative, C18H19NO4, there are three crystallographically independent molecules (molecules A, B and C).In molecule A, GREENS VANILLA the dihedral angle between two benzene rings is 12.22 (10)° and the plane of the central prop-2-en-1-one unit makes dihedral angles of 11.02 (13) and 2.

64 (12)° with the two adjacent benzene rings.The corresponding angles in molecule B are 12.35 (10), 18.78 (12) and 7.

29 (12)°, respectively, and those in molecule C are 15.40 (10), 15.62 (3) and 3.19 (13)°.

In each molecule, an intramolecular N—H.O hydrogen bond generates an S(6) ring motif.In the crystal structure, the molecules B are linked by intermolecular N—H.O hydrogen bonds into a zigzag Outdoor Ceiling Light chain along the c axis, while the molecules A and C are linked together via an N—H.

O hydrogen bond into a dimer.Adjacent dimers are further connected by N—H.N hydrogen bonds into a three-dimensional network.Weak C—H.

O and C—H.π interactions are also observed.